The Chakdara granitic gneisses are the Carboniferous-Permian
intrusive body located in the northern most portion of the Indian plate,
south of the Main Mantle Thrust(MMT). These rocks are related to the
Pan-African rift, which episodically intruded by younger hydrothermal
phases. Major element and CIPW normative data together with the field
observations are used to examine the petrochemical characteristics of
the Chakdara granitic gneisses and their possible potential of Au, Ag
and base metal mineralization within these younger phases. The
geochemical data obtained for the Chakdara granitic gneisses indicate
high concentration of silica (73.24-76.42 %) and alkalies(7.98- 9.74 %)
and low concentration of iron (1.02 - 1.67 %) and magnesium(0.14- 0.41
%), however CIPW normative values ofthe analysed samples revealed more
than 90% normative content of quartz and feldspar. Geochemically these
rocks are sub-alkaline, granitic to alkali granitic in composition.

Analysis revealed that these rocks have high K calc-alkaline
affinity, whereas high alumina to silica ratio in these rocks infers
them to be metaluminous to peraluminous. Quartzofeldspathic veins and
sulfide mineralization zones within the Chakdara granite gneisses have
economically low concentration of Au, Ag and base metals. The anomalous
values of Au, Ag and base metals within the quartzofeldspathic veins and
sulfide mineralization zones suggest detailed investigation ofthe study
region. Integrated approach, using combination ofgeophysical tools and
deep drilled samples, is recommended to investigate the area for
probable economically workable precious metal mineralization.

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